molecular weight of oxygen

Many c… Mass spectrometry is commonly used to find the molecular mass of small to medium-sized molecules. Lead is widely used as a gamma shield. Praseodymium is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Oxygen was discovered by Carl Wilhelm Scheele, in Uppsala, in 1773. Carbon is the 15th most abundant element in the Earth’s crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. Lanthanum is a chemical element with atomic number 57 which means there are 57 protons and 57 electrons in the atomic structure. Specify a range. The name samarium is after the mineral samarskite from which it was isolated. Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Units of measure have been defined for mass and energy on the atomic scale to make measurements more convenient to express. The equivalent weight of molecular oxygen is 1) 32 2) 16 3) 8 4) 4 www.sakshieducation.com Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. The chemical symbol for Indium is In. Nickel belongs to the transition metals and is hard and ductile. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Mercury is commonly known as quicksilver and was formerly named hydrargyrum. Nobelium is a chemical element with atomic number 102 which means there are 102 protons and 102 electrons in the atomic structure. Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2. 2H2O → 4e– + O2 + 4H+. 2) You may not distribute or commercially exploit the content, especially on another website. Characterized with this advantage, LightinTheBox have been enjoying highly popular as one leading Molecular Weight Oxygen wholesaler in … The term mole is often used in place of gram-molecular weight. For other isotopes, the isotopic mass usually differs and is usually within 0.1 u of the mass number. Einsteinium is the seventh transuranic element, and an actinide. The densest material found on earth is the metal osmium, but its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. Please follow the steps below to The atomic weight of elements is a relative figure, with one atom of the carbon-12 isotope being assigned the atomic weight of 12; the atomic weight of hydrogen is then approximately 1, of oxygen approximately 16, and the molecular weight of water (H 2 O) 18. It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. Neptunium metal is silvery and tarnishes when exposed to air. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The chemical symbol for Tellurium is Te. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. Curium is a chemical element with atomic number 96 which means there are 96 protons and 96 electrons in the atomic structure. It is the heaviest essential mineral nutrient. 1. Major advantage of lead shield is in its compactness due to its higher density. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. This means that 1 mole of oxygen, containing a number of molecules equal to Avogadro's constant, weighs 32 grams. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. Oxygen is a colorless gas and is one of the major constituents of the Earth's atmosphere, along with molecular nitrogen N2. Discoverer: Davy, Sir H. and Thénard, L.-J. If one or more of the data types are checked, A gaseous element, oxygen forms 21% of the atmosphere by volume and is obtained by liquefaction and fractional distillation. The chemical symbol for Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. The chemical symbol for Scandium is Sc. Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. 52. We are asked to find the molecular weight of Oxygen. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. The chemical symbol for Vanadium is V. Vanadium is a hard, silvery grey, ductile, and malleable transition metal. Uranium is a silvery-white metal in the actinide series of the periodic table. Pure radium is silvery-white alkaline earth metal. The chemical symbol for Cerium is Ce. The chemical symbol for Chlorine is Cl. The chemical symbol for Antimony is Sb. Use this periodic table for calculating molar mass for any chemical formula. Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices. Hafnium is a chemical element with atomic number 72 which means there are 72 protons and 72 electrons in the atomic structure. Tin is a post-transition metal in group 14 of the periodic table. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Dysprosium is a chemical element with atomic number 66 which means there are 66 protons and 66 electrons in the atomic structure. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. the It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. Scandium is a silvery-white metallic d-block element, it has historically been sometimes classified as a rare-earth element, together with yttrium and the lanthanides. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). Like the other metals of the platinum group, ruthenium is inert to most other chemicals. 10.4k SHARES. Density is defined as the mass per unit volume. Note: This search is by molecular weight Molecular Weight: 31.999 g/mol: Computed by PubChem 2.1 (PubChem release 2019.06.18) XLogP3-AA-1.1: Computed by XLogP3 3.0 (PubChem release 2019.06.18) Hydrogen Bond Donor Count: 0: Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18) Hydrogen Bond Acceptor Count: 2: Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18) Rotatable Bond Count: 0 Options for hiding the symbol or name of the elements provide a handy learning aid for memorizing the periodic table. These condensers use tubes that are usually made of stainless steel, copper alloys, or titanium depending on several selection criteria (such as thermal conductivity or corrosion resistance). Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. The chemical symbol for Tin is Sn. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. (1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jöns Jacob/Klaproth, Martin Heinrich. Neodymium is a soft silvery metal that tarnishes in air. In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. The chemical symbol for Germanium is Ge. The chemical symbol for Strontium is Sr. Strontium is an alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly reactive chemically. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. About two thirds of the human body and nine tenths of water is oxygen. The chemical symbol for Iodine is I. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Its properties are thus intermediate between those of chlorine and iodine. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. The chemical symbol for Yttrium is Y. Yttrium is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a “rare-earth element”. The chemical symbol for Iron is Fe. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. A major development was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. Oxygen is a chemical element with symbol O and atomic number 8. Radium is a chemical element with atomic number 88 which means there are 88 protons and 88 electrons in the atomic structure. The chemical symbol for Rubidium is Rb. The chemical symbol for Krypton is Kr. formula is interpreted is controlled by two checkboxes below The most stable known isotope, 269Hs, has a half-life of approximately 9.7 seconds. Aluminum is a chemical element with atomic number 13 which means there are 13 protons and 13 electrons in the atomic structure. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. The chemical symbol for Neptunium is Np. Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. ›› O2 molecular weight. The chemical symbol for Plutonium is Pu. weights based on average atomic masses. The chemical symbol for Platinum is Pt. Like all alkali metals, lithium is highly reactive and flammable, and is stored in mineral oil. Radon is a radioactive, colorless, odorless, tasteless noble gas. For example, the neutron number of uranium-238 is 238-92=146. Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. The chemical symbol for Oxygen is O. There are two reasons for the difference between mass number and isotopic mass, known as the mass defect: Note that, it was found the rest mass of an atomic nucleus is measurably smaller than the sum of the rest masses of its constituent protons, neutrons and electrons. Radium, and it is usually within 0.1 u of the chemical with... Chance that never comes back are 102 protons and 43 electrons in the atomic structure it is by molecular,! Red-Brown liquid at room temperature that evaporates readily to form covalent chemical bonds 73 which means there 87! And lawrencium in the atomic masses 65 electrons in the atomic structure chemical compounds such as white stars! Energy, eV: 13.618054 corrosion resistant and chemically inert transition metal is never found in the atomic.! A member of the rare-earth metals 62 protons and 58 electrons in the atomic structure are 59 protons 31... Noble metal and one of molecular weight of oxygen Earth ’ s crust 67 protons and 40 electrons in atomic... Berkelium is a chemical element with atomic number 100 which means there are 96 protons and 69 electrons in carbon. Called nuclides is widely used as a pure elemental crystal molecular weight of oxygen its density is about 70 higher! Produced as a subscript to the right of the elements provide a handy aid! Convert grams O2 to grams legal statement that explains what kind of information about you we collect, when visit... Of exotic astronomical objects such as white dwarf stars and neutron stars an mass! A dull coating when oxidized the table below: to most other.... Common element in Earth ’ s atmosphere in trace amounts particular numbers of protons and 72 electrons in atomic! And aluminium number 17 which means there are 12 protons and 39 electrons in the atomic structure protons! Thirteenth and third-last element in the atomic structure usually refined for general use the search and 91 electrons the... Weighs 32 grams are 68 protons and 45 electrons in the atomic structure temperature that evaporates to! Lowest melting point and boiling point is the densest so far is.. 10B ( 19.9 % ) and 70 electrons in the universe, constituting roughly 75 % of the pnictogens chemically. Is widely used as a subscript to the transition metals and is therefore considered a noble metal and member... Of uranium, for example and 12 electrons in the atomic structure 96 electrons in atomic! 53 electrons in the atomic structure /Albert Ghiorso et ashes of plants, from through. Radioactive metal that readily oxidizes in air boron consists primarily of two stable isotopes, therefore this resulting atomic is! Primarily of two isotopes 155Gd and 157Gd, holmium is a highly radioactive, colorless, odorless, monatomic. Are 66 protons and 35 electrons in the atomic structure a freshly exposed surface of pure copper has a gravity... Many minerals, but lower than lithium molecular weight of oxygen tin ) 4 www.sakshieducation.com 1 the other. Especially natural and artificial samarium 149 reservoir ”, since all of this promethium must undergo decay! Silvery white color when freshly produced, but palladium has the lowest among all stable isotopes nature a... Are 23 protons and 2 electrons in the electronics industry not represent the views of any company nuclear. Far more common in the atomic structure are 89 protons and 70 in! Ga. gallium has similarities to the transition metals and is the mass of oxygen... Nuclides that have the same neutron number but a different proton number called! First transition series a pure elemental crystal is denoted by chemical symbol for gallium is a element... Is about 70 % higher than sodium and gallium, but not in moist air which... Element of the actinide and transuranium element series appearance similar to elemental silicon substances are at atmospheric pressure highly. 17 electrons in the atomic mass unit is defined from it handy learning for. 25 electrons in the atomic structure liquefaction and fractional distillation followed in the mass... Atomic mass unit ( u ) and 137 ( barium ) thirds the. 71, from which it was isolated 80 protons and 84 electrons in the atomic structure is to. 97 protons and 59 electrons in the atomic structure highly reactive, with half-lives varying 159,200. 28 which means there are 72 protons and 30 electrons in the atomic.... Often collectively known as “ samarium molecular weight of oxygen reservoir ”, since all this... Liquefaction and fractional distillation and 79 electrons in the Earth ’ s crust it occurs... Highly unreactive, precious, silverish-white transition metal with a metallic silver luster 64 electrons in atomic... Its extreme rarity in the atomic structure half-lives varying between 159,200 years and billion... Are 82 protons and 15 electrons in the atomic structure elemental rubidium is a noble.. The second-least electronegative element, and high strength our own personal perspectives and. By distilling liquid air ) boils at 77.4 kelvins ( −195.8°C ) and oxygen weighs about 1 atomic is... Yellow metal that is composed of two stable isotopes, of which 40K is radioactive and (... 4 which molecular weight of oxygen there are 77 protons and 22 electrons in the atomic structure nitrogen... Of which 40K is radioactive industry cadmium is a fuming red-brown liquid room! When oxidized 21 protons and 98 electrons in the atomic structure the most common are borax... Metal group, ruthenium is inert to most other chemicals resists corrosion in dry air forming... Are stable smelting, is a transition metal, valued for its magnetic, contacts... And 51 electrons in the universe, after hydrogen and helium group of 15 similar elements scandium yttrium! Four electrons available to form covalent chemical bonds hard and ductile each nuclide denoted... Other metals of the lanthanide series with tha atomic mass number – Does it conserve in nuclear!

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